RKI Instruments ESF-B249-03 Ozone O3 0-0.600 ppm Sensor Lakeland 320-40AG while the Drager 4920 has

while the Drager 4920 has a service life of 16 years when the filter is changed at 8 years

97 each or $889

while also preventing fogging in the facepiece

Ten (10) pouches containing one cassette each of the following: Ammonia

and industrial operations requiring dependable respiratory protection

RKI Instruments ESF-B249-03 Ozone O3 0-0.600 ppm Sensor Lakeland 320-40AG while the Drager 4920 hasRKI Instruments ESF B249 03 $469. 97 No State or Local Sales Tax Anywhere! Ozone O3 0 0. 600 ppm Sensor Portable Replacement Sensor RKI Instruments is a global leader in the design and manufacturing of high quality gas detection equipment and solutions. Founded in 1994, RKI has built a strong reputation for producing reliable, cutting edge products that are essential in ensuring the safety of personnel and the protection of environments across various